Wantoknow Posted December 30, 2004 Share Posted December 30, 2004 I would like to get answers to two questions: 1. What to do to have ASUS A8V Deluxe with TWINX1024-3200C2 and TWINX1024-3200C2PT (total 2GB, four 512Mb sticks) running at 200/400MHz? 2. Why CPU-Z and Sandra 2005 Lite assign different timings to the above sticks C2 & C2PT (I think this is the reason I can not get to 200/400MHz)? When I run either pair they will run at 200/400 MHz on default or faster memory BIOS settings. However, if I install all four sticks then the best I can get is 162/324 MHz. I changed the memory setting in BIOS from AUTO to LIMIT and to 2:1 for 400DDR memory frequency, I set the timings to 3-3-3-8 to mimic the SPD from CPU-Z and yet I can not get the memory run at 200/400MHz. Details: BIOS 1008.003 (mainly default settings) Motherboard Rev. 2.0 AMD FX55 TWINX1024-3200C2 lot#0346040 about one year old TWINX1024-3200C2PT lot#0450059-2 a recent purchase All four sticks MEM86+ tested at 167/333MHz Each pair MEM86+ tested at 200/400 MHz Each pair in motherboard slots A1 and B1 will run dual channel at 200/400 MHz CPU-Z shows for TWINX1024-3200C2 SPD setting for 200/400 MHz 2.5-3-3-8 CPU-Z shows for TWINX1024-3200C2PT SPD setting for 200/400 MHz 3-3-3-8 Sandra Memory Module(s) Module 1: Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM PC3200U-2533-600 (CL2.5 up to 200MHz) (CL2 up to 167MHz) Module 2: Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM PC3200U-2533-600 (CL2.5 up to 200MHz) (CL2 up to 167MHz) Module 3: Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz) Module 4: Corsair CMX512-3200C2 512MB 16x(32Mx8) DDR-SDRAM PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 30, 2004 Corsair Employees Share Posted December 30, 2004 First thing, with this platform, you would need all modules to be exactly matched both in part# and revision. I would see if the reseller will let you send these back and get 2 sets that are exactly matched. If you want 4 modules; or actually with this MB/Platform you would be better to use 2 1.0 Gig modules or Twinx2048-3200C2 instead! Link to comment Share on other sites More sharing options...
Wantoknow Posted December 31, 2004 Author Share Posted December 31, 2004 Thanks Ram Guy! When I bought the TWINX1024-3200C2PT I was under the impression that this is the same memory as my old TWINX1024-3200C2. They have the same advertised timing specs. The only difference that I was aware of was the color of the heat spreader - platinum vs. black. 1. Are the memory chips different on C2 and C2PT? 2. Where can I find the Revision and part number? 3. Is Corsair matching four sticks? 4. Who can sell me TWINX2048-3200C2 (I checked Newegg and they have only TWINX2048-3200 no C2 rating)? 5. Will my motherboard work with these two 1Gb memory sticks? Will appreciate your response. Link to comment Share on other sites More sharing options...
CandyKid Posted December 31, 2004 Share Posted December 31, 2004 1. Are the memory chips different on C2 and C2PT? Only if the revision was the same. Since you're would not be the same revision bought that far apart, then the IC's are probably different. 2. Where can I find the Revision and part number? On the sticker on the module itself. In the upper right-hand corner, there's three rows of information. You'll need all of them for RAM GUY to know what, specifically, they are. 3. Is Corsair matching four sticks? Nope, it's just too hard to do and for a fairly small market base, not worth it. 4. Who can sell me TWINX2048-3200C2 (I checked Newegg and they have only TWINX2048-3200 no C2 rating)? http://www.eXcaliburPC.com http://www.Monarchcomputer.com http://www.PCProgress.com http://www.spartantech.com http://www.markonecomputers.com 5. Will my motherboard work with these two 1Gb memory sticks? Yes, the TwinX2048-3200C2 modules will work with your mainboard. PLUR CK Link to comment Share on other sites More sharing options...
Kosmos Posted January 2, 2005 Share Posted January 2, 2005 I have this same motherboard A8V Deluxe, latest BIOS etc. I purchased one set of TWINX1024-3200C2 when I built the system about 4 6 weeks ago. I just bought another set of TWINX1024-3200C2, which is a different lot number. I've made all your recommended settings in the BIOS. The only issue I have is applications crashing. When I just use the first pair, no problems at all. It is only when I use all 4 slots. Do I understand you, that they MUST be of the same LOT to work when I have all 4 slots used? The other question I have is, if I send this one set back, which I just purchased, am I going to have the same problem with another duel channel brand of memory? Is my only option to use 2 1G sticks? As you recommend? Oh, and by the way, I've gone through all the test etc, and all the sticks test fine, they even test fine when I run all for slots. The only problem I have is that applications will crash when I use all 4 slots. Link to comment Share on other sites More sharing options...
Wired Posted January 3, 2005 Share Posted January 3, 2005 First thing, with this platform, you would need all modules to be exactly matched both in part# and revision. Like he said, revision and part #, not lot. Link to comment Share on other sites More sharing options...
Kosmos Posted January 3, 2005 Share Posted January 3, 2005 Hmmm.... Mine are same part number and revision, but for some reason the system will not boot when I set the speed to DDR400 and have all 4 stick in. If I set the system to auto detect the speed, and set the time options to 2-3-3-6 then th system will boot, but it runs the memory at lower speed. I do also have the voltage set to 2.7 on the ddr voltage. Are there any other suggestions? I've read over the forums and seems as everywhere I look people have having problems with this plateform not wanting to boot or run all for sticks at DDR400 speed. Here are my specs if this will help. 2 pairs of TWINX1024-3200C2PT ASUS A8V Deluxe with 1008+ Bios Updated BIOS for southbridge Nvidea 6800 Ultra with updated bios and drivers on seperate rails or Molex connectors, nothing else connected. raptor 10,000 RPM drives raid 0 on VIA southbridge 7200 rpm samsung drive on promise controller IDE mode. 1 floppy 2 DVD/CD-rws also on via controller. Thermaltake 480W power supply. If I set the time to limit ddr400 with just two sticks in the blue slots channel 1 or the black slots channel 2 I have no problems, but if i put all four sticks in the system will not even post to bios. If I set to auto detect speed instead of limit and have all 4 sticks installed it will boot up just fine, but memory does not show to be running at DDR400 but at DDR333. Link to comment Share on other sites More sharing options...
Wired Posted January 3, 2005 Share Posted January 3, 2005 Well the drop in FSB is because of the memory controller, it's meant to do that. Also, try 3-4-4-8, as they're not guaranteed at those other timings when run with 4 sticks. Link to comment Share on other sites More sharing options...
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